close screen framebuffer when exiting reader

reader.lua

@@ -38,8 +38,6 @@ function exitReader()
 
     G_reader_settings:close()
 
-    input.closeAll()
-
     -- Close lipc handles
     KindlePowerD:coda()
     ReaderActivityIndicator:coda()
@@ -64,6 +62,9 @@ function exitReader()
         end
     end
 
+    input.closeAll()
+    Screen:close()
+
     if Profiler then Profiler.stop() end
     os.exit(0)
 end